Reversing mechanism.



F. W. WAPPAT.

REVERSING MECHANISM.

APPLICATION FILED FEB. 5 I9l5.

1,170,371. Peeented Feb. 1, 1916.'

3 SHEETS-SHEET l.

FIG.1

WITNESSES I HVENTOR WITNESSES F. W. WAPPAT.

Patented Feb. 1, 1916.

3 SHEETS-SHEET 2.

3o FIG 3 25- \\\\`alrllgln\\\\\\\\\\\\ /2 N V E N To R F. W. WAPPAT.

REVERSING MECHANISM. APPLICATION IILED FEB. 5. 1915.

1,170,371. Patented B01111916.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

FRED W. WAPPAT, OF PITTSBURGH, PENNSYLVANIA,

GAGE AND SUPPLY COMPANY, OF PITTSBURGH, PENNSYLVANIA,

OF PENNSYLVANIA.

REVERSING Specification of Letters Patent.

ASSIG-NOR T PITTSBURGH A CORPORATION MECHANISM.

Patented Feb. 1, 1916.

Application filed February 5, 1915. Serial No. 6,331.

To all whom it may concern:

.Be it known that I, FRED IV. WAPPAT, a

' Allegheny and State of' hwringer -and -driving mechanism therefor,

for `washing 1nachines.

The object of the invention is to provide driving and reversing mechanism and a swinging wrlnger and driving mechanism therefor, of simple construction, positive in its action, durable, and which is very simple tov operate, so that even an unskilled or ignorant operator Vcannot injure the same or get'it out ofyworkingcondition. Y

The invention comprises the construction, arrangement and assembling of parts here` inafter described and claimed.

In the accompanying drawings, Figure 1 is an end view of a Washing machine showing the 'driving and reversing mechanism in e'evatiom the cover casing of the same being eratino' devices' Fi the drum; Fig.

drive the drum,-

removed, some `parts being omitted and Y others being shown '1nI .vertical section; Fig.

2 is a vertical section longitudinally ofthe' -machine through "mechanism on the the driving and reversing line 2 2, Fig. 1, the drum Fig. 3 is a horizontal section on the line 3 3, Fig. 2; Fig. 4 is a'sectional elevation on the line 4 4, Fig. 1, parts being omitted; Fig. 5 is a sectional elevation of the wringer driving and reversing mechabeing omitted;

nism; Fig. 6 is-a horizontal section on the- Figs. 7, 8 and 9 are detail perspective views of the wringer clutch op- 10 is a view of the drum reversing mechanism 4showing the parts with the internal gear connected to and as seen from the left, Fig. 2, the external gear and its clutch parts being omitted similar View, ted, andshowing the internal gear being omitthe external gear driving 12 is a detail perspective view of a star Wheel and clutch arms operated thereby; and Figs. 13 and 14 are detail views.

In the drawings a portion of the body or for simplicity; Fig. 11 -1s aI tub of the washing machine is indicated at 11. One of the end frames is shown at 12, a portion of the swinging wringer isindicated at 13, and portion of the rotating drum ,.at' 14. These parts may -be varied within wide limits, as the features of the invention are directed to mechanism for driving and reversing the drum and for driving a swinging wringer of any form of washing machme of this same general type. The drlving and reversing mechanism'is mounted on one of the end frames, in av 16, and is inclosed therein by the Y.

casing cover 17. The power can be derived from any suitable prime mover, shown in the drawings as a small electric motor 18 mounted upon the base portion 12EL of the frame `of the washing machine. As shown the armature' shaft 19 of this motor extends into 'the lower portion of the casing 16 and carries a pinion20, which meshes with a spur gear 21 mounted in the casing 16 on the horizontal stud or j ournal 22. Integral with or secured to thel spur gear 21 is a smaller spur gear 23, which meshes with a large spur gear 24 mounted in the casing 16 upon the stud or journal 25. Integral with or secured to the spur -gear`24 is a -bevel pinion 26 from which a driving connection extends to the Wringer, as hereinafter described. Also integral with or secured to spur gear 24 is a pinion 27 which meshes with a spul gear 28 mounted upon the stud or journal 29. The armature shaft of the motor 18 and the several studs or journals 22, 25` and 29 are located in vertical alinement, as shown. Also in alinement vertically above the stud or journal 29 is a stud or journal 30, upon which is rotatable and sli'dably mounted a pinion 31 which meshes with the gear 28. The pinion 31 on its outer face' is provided 'with clutch jaws 32 adapted to 'engage clutch jaws exactly the same size as pinion 31 and also rotatable, but not slidable, or journal 30. The pinion'34 is formed on one end of a sleeve, which at its other end is formed into a pinion 35 of larger diameter t than pinion 34. The several pinions 31', 34 and 35 may be variouslyformd, but itis vpreferred to have the pinions 3l--and 34 of exactly the same size, and the same number of teeth, so that together they form in effect a two-part pinion locked together by the clutch jaws 32 and 33. The portion 31 of upon the stud 33 upon 'a pinion 34l of l this pinion is slidableto engage and disengage the clutch jaws by suitable means which will be hereinafter described.

rlihe shaft or journal 37 for'driving the v drum or other member to be reversed extends pressions or notches 48 through the end of the tub or body portion ll and into the casing 16, and has .a bearing in a bushing 38 in the inner wall of said casing 16, fand a bearing 39 at its outer end in the cover portion 17 of said casing. Rotatable upon the shaft 37 is a. gear 40 provided with internal teeth 41 which are engaged by the pinion 35. Rotatable upon the bushing or bearing 38 is a spur gear 42 which is provided with externalteeth 43 which are engaged by the small pinion 34. The ratio between gears and 40 is identical with that between gears 34 and 42, although the number of teeth may dier, and therefore the gears and 42 at all times rotate in unison, but in opposite directions, due to the fact that one is engaged externally and the 4other is engaged 41nternally.

Suitably secured to the shaft 37, such as by being keyed or pinned thereto, and preferably located between gears 40` and 42 1s a member 45, which lat its. free end is bifurcated as shown in lFig. 2.,- Located between the arms 46 of said bifurcated member is a star wheel 47 provided in its periphery with a pluralityV of notches or depressions 48 separated by intervening teeth or projec tions 49, which star wheel is rotatable upon a journal pin 50 mounted in the outer ends of the arms 46 of the member 45. 'llhe star wheel 47 is provided on one of its side faces with a tooth or projection 51 which extends circumferentially for a distance slightly less than one of the teeth or projections 49, and

which is adapted to engage with a pin 52 extending through the journal pin 50. rllhe circumferential length of the projection 51 Iis equal to the distance between thecenters of adjacent teeth minus the diameter of pin 52. The star wheel may have as manydeas desired, dependingV upon the number of revolutions which the shaft'37 is to have before reversal. As shown in the drawing this wheel is provided with'six such notches or depressions, and serves to reverse the shaft 37 after each five revolutions ofthe latter, as ,will hereinafter be described. i

' Secured to each end of the journal pin 50 is an arm, which arms are marked respectively 53 and 54, and at their outer ends are provided withl'aterally extending portions .56, the portion 56 on the arm 53 being adapted to engage with some one of the projec tions or lugs 57 on the inner face of gear 40, while the portion 56 of arm 54 is adapted to engage with similar projections 58 on the outer face of gear 42. The hubs 53a and 54a of the two arms 53 and 54 are secured to the .plunger 6l located radially to place idly during four such p ments of the star wheel, but

Y direction journal pin 50 in such positions that they are displaced angularly on said shaft or pin by an angle of 60 degrees, or any other suitable angle, the particular angle always depending upon the exact number of teeth in the starfwheel, so that when one of said arms lies radially to the center of shaft 37, the other one of said arms will have its end thrown inwardly, so to speak, with reference to the circle which is described by the outer end of the radially disposed arm, as shown in lligs. 10 and 11. The lugs 57and 58 on the gears 40 and 42 respectively are locatedequidistant from the center of said gears and at such a distance that the end portion 56 of the radially disposed arm traverses a path outside of said lugs 57 and 58, without engaging with them, while the outer end of the other arm, that is, the one thrown relatively inwardly, is in such position that the inner face of its portion 56 engages with ,the end of one of the lugs 57 or 58, depending upon which arm is thrown relatively inwardly. Consequently, only one of the gears 40 or 42 has its lugs or cam portions 57 or 58 engaged at any given time by-"one of the arms 53 or 54, and the shaft 37 will be driven in the direction of whichever gear 40 or 42 is at that particular moment engaged by the arm 53 or the arm 54 and is drivingthe same.

l 'liheseJ arms are shifted back and forth, so as to throw them alternately into radial or inward position so as to engage alternately with gears 40 or 42, to be driven thereby,'by the following means :-Moun ted in a suitable lug 60 in the casing 16.is a tappet or the center of shaft 37, and whose inner end is in such position that as the star wheely 47 describes its orbital path one of the notches or pockets 48 will be engaged by the inner end of said plunger, so -that the continued orbital movement of the star wheel will cause its rotationv through an angle depending upon the number of notches or depressions in the star wheel,-60 degrees in the embodiment shown.- This stepwise rotation of the star wheel occurs each time that it sweeps past the tappet or plunger 61. ln the particular embodiment shown where the star wheelhas six notches ordepressions, such rotation of the star wheel upon its journal 50 will take upon the fifth stepwise movement of the star wheel the lugor tooth 51 on ythe star wheel will bein engagement with the pin 52 in said journal pin. 50, and vas a result of which the journal pin 50 will be rotated with the star wheel through an angle of 60 degrees. As a consequence of this the arms 53 and 54 will be shifted angularly through 60 degrees, in one or theyv other, depending upon which direction the shaft 37 at that time is stepwise moverotating. The result is that the endsI of said arms 53 and 54 are so shifted that the one which was in locking engagement with the gear 40 or 42, as the case may be, is shifted out of locking engagement with its gear, while the other arm is shifted into locking engagement with the opposite gear 40 or 42, as the casemay be. As a result the shaft 37 will be disengaged from one of said gears and engaged with the oppositely rotating gear, this reversal taking place at each ifth'rotation of said shaft 37. It is obvious that at one reversal the star wheel will shift the journal pin 50 and the arms 53 and 54 carried thereby in one angular direction, while at the next reversal these parts will be shifted in the opposite direction, due to the fact that in the first case the star wheel is being carried in the orbitall path in one direction, while at the next reversal said star wheel is being carried in the same orbital path in the opposite direction. In Fig. 10 the lug 51 on the star wheel has just engaged the pin 52 and rotated the shaft 50 tothrowv the arm-54 outwardly to disengage its end portion 56 from the gear 42 andthrow the arm- 53 inwardly to engage its en d portion 56 lwith the gear l40 which is therefore just beginning to rotate the shaft 37 and the drum in the opposite direction from its former direction of rotation. Fig. 11 shows the parts when the neXt reversal has just been completed, with the gear 42 engaged-with its arm 54 to drive the drum. v

Suitable means may also be employed for yieldingly locking the members 53 and 54 in their two positions, although this is not essential. "As shown in Fig. 13, one of the arms 46 of the member 45 is provided with a. hollow boss 125 in which is located a ball 126 pressed by a spring 127 alternatelyy into the two notches or seats 128 in the hub 53a of the arm 53. These notches are separated by lan inverted V-shaped wall 129 over which the ballrides from one position to the other. This arrangement not only locks the arms but alsoy to some extent helps to throw said arms back and forth in reversing. It is not essential, however, andmay be omitted. l`

The tappet or plunger "61 is shown as provided with -an adjustable abutment, in.

the form of a nut 62, and 'a\ lock nut 63 therefor, against which shoulder or abutment bears a compression spring 64 so arranged as to normally hold the tappet or plunger inwardly.v This is merely asafety injury to the parts in case they should be out of proper relative positions.

In order to shift the pinion 31 into vand out `of locking engagement with pinion 34 the following means is providedr-Said pinion'31 is provided with a groove 66 downwardly proj plunger 61 is also moved endwise.

which is engaged by the end 67 of a shifting fork 68 which is'mounted on a vertical pivot 69 on a boss 70 projecting outwardly from the inner wall of the casing 16. Mounted in a suitable bearing sleeve 71 on said casing is a rotatable clutchshifting shaft 72 provided at its inner end with a 'ecting arm 73 which extends between the arms of the shifting fork 68, so that by rotating said shaft 72 in one direction' or the other the pinion 31 will be moved longitudinally upon its journal 30 to either engage it with or disengage it from the pinion 34. The outer -end of shaft 72 isprovided with a handle 74 having a projection 75, while the outer end of bearing sleeve 71 is provided with a cam face having notches 76 and 77 at right angles to each other, one of which is deeper than the other, as shown in Fig. 14, so that by moving said handle 74v angularly through 90 degrees the shaft 72 is`not only rotated to shift the clutch 'gear 31 as stated, but is also moved endwise, but not sufficiently to disengage the arm 73 on said shaft from the clutch shifting fork 68. The purpose of this'endwise movement of said shaft is as follwsz-Loose on said shaft 72 and `bearing againstthe arm 73 is avertically extending curved arm 78, whose upper rend embraces the tappet or plunger 61 and is secured thereto, such as by pin 79. Consequently, ywhen the shaft 73 is moved endwise, through this arm 78 the tappet or These parts are so arranged that when the gears 31 and 34 are in locking engagement the` shaft 72 and consequently the tappet or plunger 61 will both be in their inward positions, so that the tappet will be in position to be engaged by the star wheel 47 as it traverses its orbital pathgbut when the shaft 72 is rotated so as to disengage the pinions 31 and 34 the shaft 72 is dra-wn outwardly, and through the arm 78 the -plunger 61 will alsobe drawn outwardly against the resistance of spring 64, so that the inner endof the'lplunger or tappet. 61 will be drawn out of position the machinery, or getting the parts out of proper relative position in case the attendant should for some reason or other rotate the drum of the washing machine by hand when it is stopped. By the arrangement shown the attendant can when the clutch 31 and 34 is disengaged move the drum ofA the washing machine at pleasure without danger of'injuring any part of the driving mechanism or getting them out of adjustment. As soon as the shaft 72 is turned so as to again engage the clutch gears 31 and 34 the spring 64Y moves the plunger 61 inwardly (and through arm 78 engaging tobe engaged by the star'. `wheel as it traverses its orbital path. This is for the purpose of preventing injury to arm 73 also moves the shaft 72 inwardly) so that the end ofthe plunger 61 will again be in position to'be engaged by the star wheel in its orbital movement.

1t will be noted that the driving mecha- .nism from the motor to the reversing shaft is entirely by means of spur gears, so that friction vis reduced to a minimum and that the centers lof rotation of the several gears.

of the train are in vertical alinement. rllhis provides a very slmple gear train, and one "--'in"which friction and wear is reduced to a minimum, and which cannot Well get out of order. rlhe safety devices provided, namely,"the `withdrawal of the tappet or plunger 61 when the driving clutch is shifted renders the handling of the machine entirely safe even for an ignorant or meddlesome operation.

@ne of the ends, to wit7 the end 80 of the cams or projections 57 on gears 10, L12 is Vproperly shaped for engagement with the end faces 80 of the projections 57 are inclined relative to the radius to the distance between `tact face 80 in the inner faces of the projections 56 of the arms y53, 54 and so said projections will readily leave said contacting surface whenever the Iarms 53, &1, are shifted. As shown, these of the gear, and in actual practice they are formed parallel toa line, such as A-A., lFig. 10, making an angle of'30 degreeswith the radius and intersecting the radius at a distance from the center of the shaft 87 equal the center of said shaft 37 and the center of the'journal pin 50. llt will be recalled that it is the inner @farce of the relatively inwardly locked arm end that is in engagement ywith this face 80,`

and to disengage the same therefrom the projection 56 on the arm travels relatively the sloping of the con.

outwardly., so .that

direction shown enables the projection 56 on the arm to readily disengage said contactface, and avoid all possibility of the parts becoming locked, and, further, requiring only a` relatively lslight j stress or power applied to the stary wheel in orderto rock the arms 53, ,54 to reversing position. j f

The wringer 13 is secured through the `casting 81 to a head 82, 'which is swiveled upon a vertical axis inthe casting or bearing member 83 secured to the machine frame, so that said wringerv can be swung into operative position. over the tub or out of that position so `as to be out of the way. As

shown-this wringer'is adaptedto be locked one position'` into -three ldifferent positions,

. over the tub, one position 90degrees theretherefrom. This is secured by from, and a third position at 180 degrees means of a Y spring lpressed plunger 84 mountedf in the bearing member 83 and provided at its outer end with a pulling member or head 85, and whose inner end isadapted to engage any one of three sockets or depressions 86 in the head 82. ln order to swing the wringer to these several positions it is merely necessary to pull the spring plunger 84 outwardly and move the wringer to the desired position and allow .the spring plunger to engagerthe l proper depression in the head 82. 'llhis can be very easily edected, and is very much easier on'the operator than in prior machines employing swinging wringers in which the wringer must be lifted in order to unlock it from one position to permit it to be swung to another position. The old arrangement requires the expenditure of considerable strength because these Wri'ngers are quite heavy. This is avoided in the arrangement shown, but nevertheless the wringer is effectively locked in any one of three positions.

The driving mechanism for the wringer is as follows z-ll/leshing with the bevel pinion 26 of the vertical gear train described is a bevel gear 88, secured to the lower end of a diagonal shaft'89 mounted in a bearing 90 formed on or secured to the `casing 16 and in another bearing 91 formed on or secured to a supplementary casing 92 secured to the machine frame. rllhe shaft 89 at its upper end carries a bevel pinion 93 which Vmeshes with a bevel gear 91 on the lower end of a stub shaft 95 mounted in a bearing 96 in the upper wall of the supplementary casing 92. The' shaft 89 is formed in two parts connected by a suitable universal coupling 97, so as to compensate for any slight lack of alinement of bearings 90 and 91. `This universal coupling is inclosed by a sleeve 98, and may be of any suitable construction. 'l`he stub shaft 95 at its upper end 'is connected by a transverse pin 100 to a sleeve I101, the latter being. provided with open slots 102 at right angles to the pin 100, and whichare engaged by a' transverse pin 103 in the lower end of shaft member 101, whose upper end. is journaled in bearing 105 in the vhead 82,' and has secured to its extreme upper end a bevel gear 106 meshing with two oppositely facing bevel gears 107 and- 108 both loose upon the wringen drive shaft 109 journaled in the upper portion of head 82. The vertical shaft 104 is provided with a universal joint 110 which may wringer shaft 109 is similarly provided with a universal-joint 111. Splined to the shaft' '109 between the gears 107 and 108 is a clutch member 112 arranged to be locked to either the gear 107 or 108, and thereby secure the driving of the wringer in opposite directions as desired. Fig. 5` -.shows the clutch member 112fin neutral position. rlhis clutch member is provided with a groove 114 which isengaged by the end 115 of a vertical spindle 116 rotatable in the top portionof the head 82. The end 115 is eccentric to the a-Xis of the spindle 116 so that the rotation of the Vlatter will move the clutch member 112 to its various positions. The spindle 116 is provided with an operating handle l117, which is provided with a downwardly projecting portion or portions 118 arranged to engage in notches 119 in the upper face of the bearing through which the spindle 116 projects. Four sets of such notches are provided, arranged at 90 degrees to each other, so that when the projection 118 engages one of said notches the clutch member 112 will be in neutral position, and by moving the handle in one direction to bring the projection 118 into register with another notch said clutch member will be shifted into locking engagement with, say, the pinion 108 and drive the wringer in one direction, while by turning the handle 117 in the opposite direction from neutral position and bringing the projection 118 into engagement with another notch 119 said clutch member will be moved into locking engagement with the gear 107 and thus drive the wringer in the opposite direction.

' A spiral spring 120 is arranged to normally j wheel at each revolution of thedriven mem-y hold the spindle v116 downwardly, so as to hold the projection 118 against accidental displacement from whichever notch 119 it may be engaged with. By this clutch-mechanism thek wringer can be driven in either direction, or entirely stopped.

The shaft 104 and the universal coupling j members in said -shaft are preferably inclosed by a tube'121, which'is tight on the head 82, andwhose lower end fits loosely into the casing 92.

In order to remove the wringer entirely the spring plunger 84 is withdrawn, when the wringer, together with the head 82 and shaft 101 and inclosing sleeve 121 can be lifted out, the open'slots 102 of theuniversal coupling at the lower end of shaft 104 permitting these parts to be lifted` out without the necessity of unfastening any of the gearing. l

The universal couplings 97 and 111 may likewise be provided with open slots into which the transversev pins fit so that these shafts can be readily disconnected by mere endwise movement. The drawings so show these universal couplings, but this feature is not essential in these two couplings.

What I claim'is'tl. In a machine of the class described,- the combination of driving andfdrivenymembers, gear connections -therebetweenjfag`dapted to turn the driven member in eithe'rf direction, a star wheel arranged to shift .fsaidgear connections, and means for'actuati'ngv said star ber.

- 2. In a machine of the class described, the

combination of driving and driven memf. bers, gear connections therebetween for ro-'- tating the'driven member in opposite directions, a movable member arranged when actuated a predetermined number of times to shift said gear connections, and means for actuating said member at each revolution of the driven member.

' of said driven member shifts said gear convnections.k

4. In a machine of the class described, the combination of driving and driven members, gear connections therebetween for rotating the driven member in opposite directions, a device having a step by step movement to shift said gear connections after a plurality of steps, said device rotating'with the driven memberand adapted to be actuated one step at each'revolution thereof, and

a stationary member for actuating said device. Y p Y 5. In a machine of the class described, the comblnatlon of drivlng and driven' members, gear connections therebetween for rovtating the driven member in opposite direc# tions, a device to shift said gear connections rotating with the driven member and adapted to be actuated once at each revolution thereof, a stationaryv operating member for actuating said device, and means whereby said device after a predetermined ibo number of revolutions of 'said driven member shifts said gear connections. l6. In a machine of the class described, the

I combination of driving and driven members,

gear connections therebetween for rotating the driven member in opposite directions, a rotatable member having al step by step movement to shift said gear connections after a plurality of steps, said device being carrled around by the drivenmember, and means for actuating said rotatable member one step at each revolution of the driven shaft.

'7. In a machine of. the class described, the i combination oflgdrvng and driven members,

Fgear connections' therebetween for rotating v' the driven member in opposite' directions, a

rotatable member carried around by the" driven member, means `for actuating saidrotatable member once at each revolution of the driven shaft,v and means whereby after a predetermined number of revolutions of said driven shaft said rotatable member 'j shifts said gear connections. v -8. In a machine of theclass described, the combination of driving and driven-members,

. gear 'connections therebetween for rotating the driven member in opposite directions, a rotatable member carriedaround by` said driven member, a stationary member for actuating said member' once at each revolution of the ldriven shaft, and means whereby after a predetermined number of revolutions of the driven shaft said rotatable member shifts said gear connections.

9. 1n a machine of the class described, the combination of driving and driven members, gear connections therebetween for rotating the driven member in opposite directions, a rotatable member carried around by the driven member, a yielding operating member for actuating said rotatable member once at each revolution of the driven member, and means whereby after a predetermined number of revolutions of the driven member said rotatable member shifts said gear connections.

10. lin a machine of the class described, the combination of driving and driven shafts, gear connections therebetween for rotating the driven shaft in opposite directions, an oscillating member carried by the driven shaft and arranged when operated to shift the -connections between the driving and driven shafts to rotate the driven shaft alternately in opposite directions, and an` j to oscillate said oscillating member.

12. 1n a machine of the class described,

vthe combination of driving and driven shafts, gear connections therebetween, an

oscillating member carried by said driven shaft and arranged when operated to shift said connections to cause the driven shaft to rotate alternately in opposite directions, an intermittently actuated device rotatable with the driven shaft and arranged to oscillate said oscillating member, and a stationary member for actuating said device.

13. lin a machine of the class described. the combination of driving and driven members, gear connections therebetween for rotating thedriven member in opposite directions, a rotatable member having an orbital movement around the axis of the driven member, a pawl for rotating said rotatable member step by step, and an oscillating device operated by said rotatable member for shifting said gear connections.

14. In a machine ofthe class described,

the combination of driving and driven meni-k be-rs, gear connections therebetween foi' ro`- agradan tating the driven member in opposite directions, a rotatable member having an orbital movement around the axis of the driven member, a pawl for rotating said rotatable member step by step, and an oscillating member carried by the driven shaft and operated by said rotatable member for shifting said gear connections.

15. 1n a machine of the class described. the combination of a driven shaft, oppositely rotatable gears thereon provided .with lugs on their adjacent faces, a rotatable member carried by said shaft, a device actuated by said rotatable member and adapted to engage with either of said lugs, and means whereby said member shifts the connection of said device with said lugs after a predetermined number of revolutions of said driven shaft for rotating the same alternately in opposite directions.

16. lin a machine of the class described, the combination of a driven shaft, oppositely rotatable gears thereon provided with lugs on their adjacent faces, a rotatable member carried by said shaft, adevice actuated by said rotatable member and adapted to engage With either of said lugs, means whereby said member shifts the connection of said device with said lugs after a predetermined number of revolutions of said driven shaft for rotating the same alternately in opposite directions, and a'stationary member for actuating said rotatable member.

17. lin 'a machine of the class described, the combination of a driven shaft, two driving gears thereon rotatable in opposite directions and provided with circumferentially extending lugs on their adjacent faces,

an oscillating member supported at one side of said shaft between said gears and having projections at its ends alternately 'movable into and` out of engagement with said lugs when said member is oscillated, and means adapted to oscillate said `member in one` direction or the other after a predetermined number of revolutions of said driven shaft. 18. 1n a machine of the class described, the combination of a driven shaft, oppositely rotating gears thereon having circumferentially extending lugs on their adjacent faces, the end edges of said lugs being inclined, an

oscillating member located at one-side of said shaft between said gears and provided at its ends with projections adapted to move toward and from said shaft for engagement with or disengagement from said lugs, and means for intermittently oscillating said member.,Y v

19. In a machine of the class described, the combination of a driven shaft, oppositely rotating gears thereon having circumferentially extending lugs on their adjacent faces, the end edges of sai-d lugs-being inclined,

an oscillating member located at one side of said shaft between sa1d gears and provided with or disengagement at its ends with projections adapted to move the combination of a driven shaft, oppositely rotating gears thereon having circumferen- .tially extending lugs on their adjacent faces,

the end edges of said lugs being inclined,

an oscillating member located at one side of said shaft between said gears and provided at its ends with projections adapted to move toward and from said shaft for engagement with or disengagement from said lugs, a rotatable member carried by said shaft and adapted tooscillate said oscillating member, and means for rotating said member alternately in opposite directions. l

'21. In a machine of the class described; the combination of a driven shaft, oppositely rotating gears thereon having circum ferentially extending lugs on their adjacent faces, the end edges of said lugs being inclined, an oscillating member located at one side of said shaft between said gears and provided at its ends with projections adapted to move toward and from said-shaft for engagement ,'with or disengagement from said lugs, a rotatable member carried by said shaft and adapted to oscillate said oscillating member, and a stationary device for intermittently rotating said rotatable member.

the combination of a In a machine of the class described,

tlie combination of a driven shaft, tvvo gears thereon rotatable in opposite directions and provided a rotatable member carried by provided with a projection,

means for ini termittently rotating said member, a device lying at one side of said shaft and provided with arms adapted to coperate with saidl lugs, said device also having a projection adapted to cooperate with the projection on said rotatable member for shifting the connection of said arms and lugs-` In a machinel of the classl described, the combination of a driven member, a reversing mechanism embodying a rotatable member and arranged to periodically effect a change in the direction of rotation of said driven member, driving means for said reversing4 mechanism `including a clutch, a pawl for operating and means'for simultaneously opening said clutch and disconnecting said paWl from said rotatable member. A i

Q4. In a machine'of the class described,

driven member, a reversing mechanism embodying a rotatable with lugs on'their adjacent faces,4 said shaft and 'said' rotatable member, L

member and arranged to periodically effect a change in direction of rotation of the driven member, a stationaryyielding pawl for operating said rotatable member, ing means for said reversing mechanism including'V a clutch, and means for simultaneously opening said clutch and disengaging said pawl from said rotatable member;

25. In a machine of the class described, the combination of a driven member, reversing mechanism embodying a rotatable member having a planetary movement around said driven member and arranged to periodically effect a change in the direction of rotation of said driven member, a stationary pawl for operating said rotatable'member, driving means for said reversing mechanism including a clutch, and means for simultaneously opening said clutch and Withdrawing said paWl from the path of movement of said rotatable member.

26. A machine of the class described, comprising `a frame,a driven member in the upper part of the frame, a motor beneath the frame, driving connections between said ,motor and member including a clutch and reversing mechanism for rotating said member alternately in opposite directions, and means for simultaneously controlling said clutch and reversing mechanism.

27. A machine of the class described, comprising a frame, a driven member in the upper -part of the frame, a motor beneath the frame, driving connections between said .motor and member including a clutch and reversing mechanism for rotating said member alternately in opposite directions, and means arranged to simultaneously open said clutch and render said reversing mechanism ineffective.

A2554. In a machine of the class described, the' combination of an oscillatable member, driving mechanism for oscillating the same includinga clutch, a device governing the oscillations of said member, and-means arranged to operate both the clutch and device and so arranged that said device is operative only when the clutch is engaged.

29.' In a machine of the class described, the combination of an oscillatable member, driving mechanism for oscillating the same including a clutch, a device governing the oscillations of said member, and means arranged to operate both the clutch and device and so arranged that when the clutch is disengaged thev device is inoperative.

In testimony whereof, I have hereunto. set my hand.

j FRED W. WAPPAT.

Witnesses:

ELBERT L. HYDE, GLENN H. LERnscHE.

driv-A 

